COG sight
From Halopedia, the Halo wiki
The COG is a sight used on UNSC weapons. It can tell the shield strength and health of enemies in Warzone.[1] as well as displaying ammo count, direct hit, enemy and vehicle weaknesses, and sorrounding the enemies with a red line (similar to the ODST VISR) even denoting invisible enemies when this are firing/being fired for up to 3 seconds and then loosing sight of it making it one of the most useful sights in the game
Known applicable weapons
The following weapons have been seen to utilize this attachment:
List of appearances
- Halo 5: Guardians (First appearance)